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    CVE-2026-101050

    Heym before 0.0.53 fails to verify the X-Telegram-Bot-Api-Secret-Token header on Telegram webhook endpoints when credential_id is absent or secret_token is empty. Remote unauthenticated attackers can post forged Telegram updates to trigger workflows with the owner's configured credentials and execute actions on attacker-supplied input.

    Published:Sep 27, 2026
    Last Modified:Sep 28, 2026
    EPS:Sep 27, 2026
    EPSS Score:0.00297
    CVSS Score:6.5

    Affected Products

    Vendor
    Heymrun
    Product
    Heym

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

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    CVE-2026-100865 (CVSS 8.7) — Heym before 0.0.53 evaluates workflow condition expressions using Python's eval() with insufficient sandboxing…
    CVE-2026-100864 (CVSS 8.7) — heym before 0.0.91 contains a sandbox escape vulnerability in the expression engine's DotList map/filter and f…
    CVE-2026-100863 (CVSS 5.3) — Heym versions 0.0.90 and earlier contain two server-side request forgery (SSRF) egress gaps, both remediated i…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High